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Finding the Fourth Proportional to 1,750.23, 2,415.12 and 1,042.12

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Solution

The fourth proportional to 1,750.23, 2,415.12 and 1,042.12 is: 1,438.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.23 : 2,415.12 = 1,042.12 : x
  2. Step 2: Convert to fraction form
    1,750.23/2,415.12 = 1,042.12/x
  3. Step 3: Cross multiply
    1,750.23x = 2,415.12 × 1,042.12
  4. Step 4: Simplify right side
    1,750.23x = 2,516,830.38
  5. Step 5: Solve for x
    x = 2,516,830.38/1,750.23
  6. Step 6: Final answer
    x = 1,438.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.